About all petrol distillates are miscible. Light Diesel fuel (for cars, not boats) and jet fuel are nearly the same.
Do NOT fly an aeroplane with Diesel fuel, as it would precipitate at cold and clog the injectors. Jet fuel imposes limits on water contents, heavy paraffins and so on to avoid precipitates. But railway engines with a gas turbine often run on standard Diesel fuel.
An old Diesel engine runs well on jet fuel. The operation manual of my Citroën Cx recommends it, especially in winter - or to mix Diesel fuel with unleaded ordinary gasoline. Jet fuel is less taxed than Diesel fuel because aeroplanes can choose where they buy. In Germany, running a car with jet fuel is legal, in France it's not, so check your local law. I have no definite opinion about more recent common-rail engines.